389318808 has 16 divisors (see below), whose sum is σ = 973297080. Its totient is φ = 129772928.

The previous prime is 389318807. The next prime is 389318837. The reversal of 389318808 is 808813983.

It is a happy number.

It is a super-4 number, since 4×389318808⁴ (a number of 35 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389318807) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8110785 + ... + 8110832.

Almost surely, 2^389318808 is an apocalyptic number.

It is an amenable number.

389318808 is an abundant number, since it is smaller than the sum of its proper divisors (583978272).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

389318808 is a wasteful number, since it uses less digits than its factorization.

389318808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16221626 (or 16221622 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 48.

The square root of 389318808 is about 19731.1633716819. The cubic root of 389318808 is about 730.1887345868.

The spelling of 389318808 in words is "three hundred eighty-nine million, three hundred eighteen thousand, eight hundred eight".